流程定义列表页面如下:
对应的html代码:
<div id="logdiv1" ng-init="init();"> <p style="font-size:24px;margin:3px">流程列表</p> <center> <table border="1px" style="margin-top:1px;width:87%;font-size:14px;text-align:center;margin-top:1px;margin-left:2px;position:relative;float:left;" cellSpacing="0px" cellPadding="0px"> <tr style="background-color:#ccc"> <td>ID</td> <td>NAME</td> <td>DeploymentID</td> <td>KEY</td> <td>版本</td> <td>resourceName</td> <td>DiagramResourceName</td> <td>操 作</td> </tr> <tr ng-repeat="process in processList | orderBy:'id'" > <td>{{process.id}}</td> <td>{{process.name}}</td> <td>{{process.deploymentId}}</td> <td>{{process.key}}</td> <td>{{process.version}}</td> <td>{{process.resourceName}}</td> <td>{{process.diagramResourceName}}</td> <td><a href="script:;" ng-click="toProcess(process)">启动</a> <a href="script:;" ng-click="deleteProcess(process)">删除</a> </td> </tr> </table> <div id="handleTemplate" ></div> </center> </div>
对应的angularjs代码:
angular.module('activitiApp') .controller('processCtr', ['$rootScope','$scope','$http','$location', function($rootScope,$scope,$http,$location){ $scope.init=function(){ $http.post("./processList.do").success(function(result) { if(result.isLogin==="yes"){ $rootScope.userName=result.userName; $scope.processList=result.data; }else{ $location.path("/login"); } }); } //开始流程 $scope.toProcess= function(process){ $rootScope.process=process; $('#handleTemplate').html('').dialog({ title:'流程名称[' + process.name + ']', modal: true, width: $.common.window.getClientWidth() * 0.6, height: $.common.window.getClientHeight() * 0.9, open: function() { // 获取json格式的表单数据,就是流程定义中的所有field readForm.call(this, process.deploymentId); }, buttons: [{ text: '启动流程', click: function() { $("#handleTemplate").dialog("close"); sendStartupRequest(); setTimeout(function(){ window.location.href =("#/findFirstTask"); },1500); } }] }).position({ //my: "center", //at: "center", offset:'300 300', of: window, collision:"fit" }); ; }; //读取流程启动表单 function readForm(deploymentId) { var dialog = this; // 读取启动时的表单 $.post('./getStartForm.do',deploymentId, function(result) { // 获取的form是字符行,html格式直接显示在对话框内就可以了,然后用form包裹起来 $(dialog).append("<div class='formContent' />"); $('.formContent').html('').wrap("<form id='startform' class='formkey-form' method='post' />"); var $form = $('.formkey-form'); // 设置表单action getStartFormAndStartProcess $form.attr('action', './getStartFormAndStartProcess'); //设置部署的Id $form.append("<input type='hidden' name='deploymentId' value="+deploymentId+">"); $form.append(result.form); // 初始化日期组件 $form.find('.datetime').datetimepicker({ stepMinute: 5 }); $form.find('.date').datepicker(); // 表单验证 $form.validate($.extend({}, $.common.plugin.validator)); }); } /** * 提交表单 * @return {[type]} [description] */ function sendStartupRequest() { if ($(".formkey-form").valid()) { var url = './getStartFormAndStartProcess.do'; var args = $('#startform').serialize(); $.post(url, args, function(data){ $("#handleTemplate").dialog("close"); $location.path("/findFirstTask"); }); } } }])
在上边的代码中就有需要注意的地方了,从代码中可以看到,当我们点击页面的启动按钮时,会触发toProcess方法,而这个方法就使用到了dialog对话框,对话框中显示的内容便是之前自定义的表单,从后台数据库中请求过来。
那么读取的时候发送了getStartForm.do的请求,后台对应的代码如下:
@RequestMapping(value = "/getStartForm.do", method = RequestMethod.POST, produces = "application/json;charset=utf-8") @ResponseBody public Object getStartForm(@RequestBody String deploymentId) { Map<String, String> map = new HashMap<String, String>(); String deString = null; deString = deploymentId.replaceAll("=", ""); String form = this.getStartForm1(deString); map.put("form", form); return map; } public String getStartForm1(String deploymentId) { String deString = null; deString = deploymentId.replaceAll("=", ""); ProcessDefinition pd = repositoryService.createProcessDefinitionQuery() .deploymentId(deString).singleResult(); String form = (String) formService.getRenderedStartForm(pd.getId()); return form; }
要说明的是这里之所以能使用formService.getRenderedStartForm方法,便是因为在上一节部署的时候进行了设置,否则这个方法是无法正常使用的。
那么这个对话框弹出界面视图如下:
需要注意的是dialog的css样式在jquery-ui.css中,不要忘了导入进来,当然了,也可以按自己的喜好修改。
那么填写好相关的数据点击提交,同过上边的js可以知道就走到了后台getStartFormAndStartProcess这里,启动流程实例:
/** * @throws XMLStreamException * 启动流程 * * @author:tuzongxun * @Title: startProcess * @param @return * @return Object * @date Mar 17, 2016 2:06:34 PM * @throws */ @RequestMapping(value = "/getStartFormAndStartProcess.do", method = RequestMethod.POST, produces = "application/json;charset=utf-8") @ResponseBody public Object startProcess1(HttpServletRequest req) throws XMLStreamException { Map<String, String[]> formMap = req.getParameterMap(); String deploymentId = formMap.get("deploymentId")[0]; // 拿到第一个data_1设置申请人 String person1 = (String) formMap.get("data_1")[0]; Map<String, String> map = new HashMap<String, String>(); boolean isLogin = this.isLogin(req); if (isLogin) { if (deploymentId != null) { HttpSession session = req.getSession(); String assginee = (String) session.getAttribute("userName"); ProcessDefinition pd = repositoryService .createProcessDefinitionQuery() .deploymentId(deploymentId).singleResult(); String processDefinitionId = pd.getId(); Map<String, String> formProperties = new HashMap<String, String>(); Iterator<FlowElement> iterator1 = this .findFlow(processDefinitionId); // 取第一个节点,开始节点的行号 String row = null; while (iterator1.hasNext()) { FlowElement flowElement = iterator1.next(); row = flowElement.getXmlRowNumber() + ""; break; } // 从request中读取参数然后转换 Set<Entry<String, String[]>> entrySet = formMap.entrySet(); for (Entry<String, String[]> entry : entrySet) { String key = entry.getKey(); String value = entry.getValue()[0]; if (!key.equals("deploymentId")) { String keyString = key + row; formProperties.put(keyString, value); } } formProperties.put("deploymentId", deploymentId); Iterator<FlowElement> iterator = this.findFlow(pd.getId()); int i = 1; while (iterator.hasNext()) { FlowElement flowElement = iterator.next(); // 申请人 if (flowElement.getClass().getSimpleName() .equals("UserTask") && i == 1) { UserTask userTask = (UserTask) flowElement; String assignee = userTask.getAssignee(); int index1 = assignee.indexOf("{"); int index2 = assignee.indexOf("}"); formProperties .put(assignee.substring(index1 + 1, index2), person1); break; } } identityService.setAuthenticatedUserId(assginee); ProcessInstance processInstance = formService .submitStartFormData(processDefinitionId, formProperties); map.put("userName", (String) req.getSession().getAttribute("userName")); map.put("isLogin", "yes"); map.put("result", "success"); } else { map.put("result", "fail"); } } else { map.put("isLogin", "no"); } return map; }
而这里最重要的是对前台数据的处理,如果大家使用了ueditor插件,会发现他传递到后台的数据是存放在request中的一个map中,而map的key都是data_1、data_2、data_3的形式。
这样问题就来了,到后边对任务进行操作的时候,这些数据还是这样从data_1开始,那么如果我们原样保存到数据库,以后查询时自然就会有问题了,所以这里就根据每个流程中流程节点行号的唯一性进行了重新组合,然后把这些数据保存为流程变量。